Renormalization-group study of the Anderson-Hubbard model
- 1 November 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 26 (9) , 5097-5102
- https://doi.org/10.1103/physrevb.26.5097
Abstract
We study the half-filled Hubbard model with random on-site energies with the use of a real-space renormalization group. For , we find a transition from an Anderson insulator to a Hubbard insulator as the Hubbard is increased. We find no metallic phase. For , we find a metallic phase which, surprisingly, is stabilized against Anderson localization by a small Hubbard .
Keywords
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